A semi-automated method for hexahedral mesh construction of human vertebrae from CT scans.
A semi-automated method for hexahedral mesh construction of human vertebrae from CT scans.
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DOI：
10.1080/10255840902802883
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发表时间：
2009-10
影响因子：
1.6
通讯作者：
Niebur GL
中科院分区：
文献类型：
--
作者：
Dai Y;Niebur GL
由于椎骨的几何复杂性，从CT扫描生成椎骨的有限元网格是劳动密集型的。因此，需要简化椎骨网格创建的技术，以使有限元分析在大型研究和临床应用中可行。开发了从椎骨的CT扫描获得骨轮廓的几何表示并从轮廓构建六面体网格的技术。一种自动边缘检测技术的开发，以确定表面轮廓的椎骨，其次是基于图谱的B样条曲线拟合构建曲线的边缘点。该方法是自动的，对缺失数据具有鲁棒性，具有可控程度的平滑和插值。然后使用参数映射来为每个CT切片生成节点，这些节点在切片之间连接以获得六面体网格。该方法适用于各种骨科结构的建模。
Generation of finite element meshes of vertebrae from CT scans is labor intensive due to their geometric complexity. As such, techniques that simplify creation of meshes of vertebrae are needed to make finite element analysis feasible for large studies and clinical applications. Techniques to obtain a geometric representation of bone contours from CT scans of vertebrae and construct a hexahedral mesh from the contours were developed. An automated edge detection technique was developed to identify surface contours of the vertebrae, followed by atlas based B-spline curve fitting to construct curves from the edge points. The method was automatic and robust to missing data, with a controllable degree of smoothing and interpolation. Parametric mapping was then used to generate nodes for each CT slice, which were connected between slices to obtain a hexahedral mesh. This method could be adapted for modeling of a variety of orthopaedic structures.
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影响因子：
2.4
作者：
Shim, Vickie B.;Pitto, Rocco P.;Anderson, Iain A.
通讯作者：
Anderson, Iain A.
影响因子：
2.4
作者：
Keyak, JH;Rossi, SA
通讯作者：
Rossi, SA
DOI：
10.1115/1.1589772
发表时间：
2003-08-01
影响因子：
1.7
作者：
Crawford, RP;Rosenberg, WS;Keaveny, TM
通讯作者：
Keaveny, TM
DOI：
10.1016/0141-5425(90)90022-f
发表时间：
1990-09-01
期刊：
JOURNAL OF BIOMEDICAL ENGINEERING
影响因子：
--
作者：
KEYAK, JH;MEAGHER, JM;MOTE, CD
通讯作者：
MOTE, CD
DOI：
10.1016/0141-5425(92)90100-y
发表时间：
1992-11-01
期刊：
JOURNAL OF BIOMEDICAL ENGINEERING
影响因子：
--
作者：
KEYAK, JH;SKINNER, HB
通讯作者：
SKINNER, HB